Perhaps you should try some spelling variations:
litteratura sarda » letteratura sarda, letteratura storia, letteratura sulla
de litteratura » de litterature, de literatura, e letteratura
et letteratura » e letteratura, et litterature, di letteratura
grand general » grande general, grant general, grid general
grain libro » gran libro, grain fibril
i grain » ii grain
i grand » i grunde

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( i grain libro de litteratura sarda ) OR ( i grand general et letteratura e )).
• Adding a wildcard symbol may retrieve word variants: (( i grain libro de litteratura sarda ) or ( i grand general et letteratura e ))*.